SCARY STORY: Writer and DSK accuser Tristane Banon in Paris yesterday with her lawyer, David Koubbi.Reuters

A stunning French writer filed charges yesterday accusing Dominique Strauss-Kahn of attempted rape, and broke her long silence as she described a violent sex attack during a 2003 book interview.

Tristane Banon, 31, a close pal of Strauss-Kahn’s daughter Camille, said she waited eight years before filing the sex-assault complaint because “it’s very difficult for any woman in this situation . . . and it’s even more difficult when you know in advance that it’s doomed to failure.”

The complaint comes as the case against Strauss-Kahn in New York is about to be dismissed, sources with the Manhattan DA’s Office have said, and the ex-IMF chief’s name has resurfaced as a potential Socialist Party challenger to French President Nicolas Sarkozy in the 2012 election.

Banon said she described some of the attack in an “autobiographical novel” she published in 2006 called “The Trapezist.”

“I left out some sordid details, about his fingers in my mouth, his hands in my underwear after he ripped off my jeans and my bra,” Banon told the French news magazine L’Express yesterday.

“He grabbed my hand, then my arm. I told him to let me go and that’s when the fight started. He pulled me towards him. We fell down and fought on the ground for a few minutes,” Banon said.

She said she started kicking Strauss-Kahn, then finally broke free, ran down the stairs and called her mother from her car.

“I couldn’t even drive, I was trembling so much,” she said.

Banon came forward after weeks of silence, saying she was trying to clear her own name of accusations she made the story up.

Strauss-Kahn has labeled Banon’s account “imaginary” and threatened to file a criminal complaint of slander against her.

Meanwhile, Strauss-Kahn’s wife has vowed revenge on those who have hurt her husband. “Let’s not forget those who have spit in our face,” Anne Sinclair said in text messages to pals, according to Le Nouvel Observateur, a French weekly.